Combined container and ejector



p 9 4- W.H. RADBRUCH 2,358,998

COMBINED CONTAINER .AND EJECTOR Filed March 25, 1942 INVENTOR. WALTER H. RADBRucH ATTORNEYS posed at one end thereof.

Patented Sept. 26, 1944 UNITED STATES PATENT OFFICE.

COMBINED CONTAINER AND EJECTOR Walter H. Biadbruch, San Francisco, Calif.

Application March 25, 1942, Serial No. 436,066

1 Claim.

An object of my invention is to provide a combined container and ejector which is a modification of the combined container and dispenser shown in m copending application, Serial No. 398,928, filed June 20, 1941. In the companion case a metal container is illustrated with a movable plug placed at one end and normally con stituting one end of the container. The other end is closed by a removable cover. When the cover is removed, the movable plug can be moved to the other end of the container for ejecting all of the material therefrom. The movable plug now acts as a dispenser.

The combined container and dispenser shown in my copending application is designed for expelling all of the material from the container and it is this same thought that is set forthin the present case. The container or tube is made from paper instead of metal. The paper is preferably of the parchment type and is large enough to be rolled into a tube-like form which a number of layers of the paper forming the tube Wall. The

heat for causing th glue to permeate the paper and seal the tube ends.

I provide novel means for ejecting all of the material from the tube when once the tube is opened. The material ejecting means comprises a plug or ejector placed within the tube and dis- The opposite end of the tube has a line thereon along which the tube may be cut for opening it. The portion of the tube disposed in back of the plug or ejector has a mark thereon which may be punctured and an object such as a nail inserted in the opening provided by the puncture and moved against the plug for moving the latter toward the open end of the tnbe. This movement of the ejector will expel the tube contents.

A modified form of material ejector consists of an ejector which is longer than the tube itself. In this form of the device, the ejector is separate from the tube. To open the tube, both ends are cut and the ejector is moved into the tube from one end and moved entirely through the tube. In this way all of the tube contents are ejected. It is possible to use the ejector as a stirring paddle after it has forced all of the material from the tube.

A further object of my invention is to provide a device of the type described which is extremely of the device will be particularly pointed out in the appended claim.

My invention is illustrated in the accompanying drawing forming a part of this application, in which:

Figure l is a plan View of the paper sheet used in forming the tube;

Figure 2 is a plan view of the completed tube;

Figure 3 is a side elevation of Figure 2, a portion being broken away to show the ejector.

Figure 3a is a sectional view of a modified form of the tubeend closing means;

Figure 4 is an enlarged sectional view of a portion of the tube wall illustrating the wall being formed from a number of layers of paper glued together;

Figure 5 is a side elevation of a modified form of tube;

Figure 6 shows an elongated ejector being moved through the tube which has been opened at both ends for expelling all of the contents therefrom; and

Figure 7 is a view similar to Figure 6, but showing the elongated ejector moved entirely through the tube.

While I have shown only the preferred forms of my invention, it should be understood that various changes or modifications may be made within the scope of the appended claim without departing from the spirit of the invention.

In carrying out my invention, I provide a sheet of paper indicated generally at A in Figur The size of the paper will vary in accordance with the size of the tube to be formed. The paper is preferably of a parchment variety and is large enough to be rolled and provide a plurality of layers of paper for the tube wall. In Figure 4, I show the tube wall B with three layers of paper indicated at I, 2 and 3 held together "by two layers 4 and 5 of adhesive such as glue. The number of layers can be changed at will.

The paper A may have the trade-mark and instructions printed thereon as indicated by the parallelogram 6 shown in Figure 1. The trademark and instructions are placed on that portion of the paper which will appear on the outside of the completed tube. The paper A also has two arrows l and 8 and a circle 9 printed thereon.

In forming the tube, the paper A is rolled around a core not shown, having a diameter equal to the diameter of the tube to be made. A layer of adhesive is applied to one side of the paper prior to the rolling operation. This will cause the various layers of paper in the completed tube to be separated by layers of glue which bind all of the paper layers together to form the tube wall B. The rolling of the paper is such that the parallelogram 6 and instructions will appear on the outside of the tube. The core is removed after the adhesive has set.

The end C of the tub is now flattened and bent back on itself to form a closure. If desired a clip III of metal or other material may be moved over the turned back end to hermetically seal thisend. A small amount of a neutral paste or oil is placed in the closed end before the ejector D, see Figure 3, is placed in the tube. The neutral paste or oil fills the space I I between the ejector D and the closed tube end C. The ejector D is preferably formed from 2. treated wood that will not absorb the material contained in the tube. The ejector is cylindrical in shap and has a diameterequal to the inner diameter of the tube. The ends of the ejector extend at right angles to the longitudinal axis thereof,

The main body of the tube is now filled with the paste, pigment or liquid of a predetermined quantity. After this is done, the open end of the tube is flattened and a portion bent back on itself for closing the tube as at E. Here again a clip l2 of metal or other material may be used for sealing the tube end. Th 'arrow 1 points toward the clip l2 of the completely sealed tube. When the tube is opened the cutting is done along the inner edge of the clip l2.

In Figure 3a, the clips l0 and I2 are done'away with and the tube ends are sealed by folding the flattened portions back on themselves once or twice and then applying heat for causing the adhesive to permeate the paper and hermetically seal the tube ends. Only one sealed tube end I3 is shown in detail in Figure 3a. Both ends of the tube will be sealed in the same manner so an illustration of one end will suffice for both,

From the foregoing description .of the various parts of the device, the operation thereof may be readily understood. The purpose of the neutral paste or oil filling the space H is to prevent the paste or oil in the main-compartment l4 from Working into the space H, thereby reducing the quantity of material in the compartment I 4. The vital part of the invention is to provide a containerthat will carry a predetermined quantity of material and that has mean for expelling all of the material so that it is possible to remove a predetermined and measured quantity of material from the container.

To open th container, a knife or other cutting instrument is used for cutting the tube along the clip l2. This opens the end E and now the plug or ejector D can be moved. To do this, a nail 9a is forced into the tube at the mark 9 and is moved against the ejector. The nail is used for moving the ejector to the open end of the tube and the ejector will expel all of the material from the tube. When a portion of the ejector projects beyond the" tube end, any material adhering thereto may be scraped off, A measured quantity of material from the tube is thus assured.

In Figures 5 to '7 inclusive, a modified form of the invention is illustrated. The tube F shown in Figure 5 is mad in the same way as the tube shown in Figures 1 to 4 inclusive. No ejector is mounted in the tube, but instead the entire tube is filled with a predetermined quantity of material. The tube ends are sealed by clips I5 and 16 or the ends may be folded back and sealed by the application of heat and pressure as disclosed in Figure 3a.

When it is desired to remove the material from the tube, both tube ends are out along lines coinciding with the inner edges of the two clip l5 and I6. An elongated ejector G having a cross sectional area conforming to the interior of the tube is now moved into the tube from the open end H, see Figure 6. The-end I8 of the ejector G that enters the tube F is slightly wedge-shaped so as to enter the tube more readily. The ejector G is moved entirely through the tube F in the manner shown in Figure 7 and emergesfrom the open end IQ of the tube. All of the material is removed from the tube Walls in this manner. It is possible to remove the tube from the ejector by sliding the tube ofi. The tube will scrape the ejector to remove any material adhering thereto. The ejector is made long for two purposes, one for removing the material from th tube and the other for acting as a stirrin stick for mixing the material with any other desired kind of material. An eye 20 is formed in the top of the combined ejector and stirrer for hanging the stick on a nail or other support.

The package or container i made of two .or more layers of oil resistant paperglued together, the glue being non-soluble in oil. The glue therefore acts a a closure and prevents the escape of any oil that might penetrate the paper. The glue also prevents any air from'seeping into the tube and drying the material. Afterthe tube has been filled and sealed, it may be dipped completely into a Celluloid coating material to further seal the tube against any air passing into th tube or any material passing out from the tube. The resulting package is flexible and makes a good substitute for a metal tube. The tube is cheaper to manufacture and the paper may be printed before it is rolled into a tube.

I claim:

A collapsible cylindrical tube having the cylindrical edges at its ends collapsed and sealed to provide straight edged ends, a cylindrical ejector plug slidably disposed in the tube and placed adjacent to one end so a to divide the tube into a very small compartment and a large compartment, the large compartment being filled with a premeasured quantity of material, the small compartment being filled with a neutral material to prevent passage of any material from the large to the small compartment, said tube having a mark thereon at the end disposed adjacent to the small compartment and indicating where the tube may be punctured by a. nail for moving the ejector through the tube after the opposite tube end is out for ejecting all of the premeasured quantity of material from the tube, the ejector acting as a stopper when reachin the cut tube end for preventing any of the neutral material from being expelled from the tube to mix with the expelled material.

WALTER H. RADBRUCH. 

